Wringing machine



May 19, 1931-. s. c. LAWLOR WRINGING MACHINE Filed Aug. 20, 1927 2Sheets-Sheet 1 I If. I

y 1931- I s. c. LAWLOR 1,805,774

WRINGING MACHINE Filed Aug. 20, 1927 2 Sheets-Sheet 2 ImIEn Ur K SimeuzzELamZ/JP I Patented May 19, 1931 UNITED STATES PATENT orrics SIMEON C.LAWLOR, OF CHICAGO, ILLINOIS, ASSIGNOR TO S. O/LAWLOR COMPANY, OF

CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS i WBIN'GING MACHINEApplication filed August 20, 1927. Serial No. 214,312.

My invention relates in general to a wringing machine and morespeclfically to a mop wringer for general use, and especially for usewith janitors pails and mop.

tanks. I. have illustrated the mop wringer of my invention in connectionwith a two compartment steel mop tank of well known design.

'Among the objects of my invention are to provide a wringer of improveddesign which is simple to manufacture, easy to attach to a tank, andeasy to operate.

Further objects are to provide a wringer using foot or hand pressure tobring the;

normally separated rolls together and so designed as to provide longerleverage, more direct action, and therefor higher pressure on the mop toefiiciently wring the water therefrom. v

A further object is to provide a hand operated looking wringer ofimproved design 1 30.? Referring to the accompanying draw Figure 1 is atop view of the compartment tank having the foot pressure wringerattached thereto. I a5 .2 Figure 2 is a sideelevation of the tank andwringer of Figure 1 with only a portion of the tank shown. 1

Figure 3 is a sectional view ofthe wringer of Figure 1 taken in thedirection of the "arrows along the line AA of Figure 1.

Figure 4 is a top view of the wringer end of a mop tank showing awringer of similar type to that. of Figure l'except that the same isoperated by hand pressure. Figure 5'is a side elevation of the wringerof Figure .4, showing the hand lever.

Figure 6 is a. sectional view of the wringer of Figure 4 taken, in thedirection of thed rality of holes in the end'thereof to fasten arrowsalong line BB thereof.

59 Iwill now'describe the wringer more in lngs.

- what longer shaft.

detail having reference to the above draw{ The tankQ-shown in Figs.13inelusive, has two compartments 3' and 4, one for clean and the otherfor rinse water. On the rinse .Waterrcompartment 4 is mounted a crossangle iron bar '5 which acts as part of the support for the wringermechanism. Attached to the angle iron'5 and to the angle iron 6 on theend of the tank by means of screws, 9 and'lO are a pair of castings orplates '7 and 8 which are specially designed to provide proper bearlngsand support for the wringer rollers.

The casting 7 is shown clearly in Fig. 3, and the opposite side or outerside of'casting 8 is shown clearly in Fig. 2.

The wringer proper consists of a stationary roller 9, and a movableroller 10,

together with mechanism for bring the movable roller. into operativeengagement with the stationary roller 9. The stationary roller 9 isconstructed of a sheet of steel. or other suitable material rolled andriveted or otherwise fastened rigidly to a shaft 11 by means of metalheads; The shaft 11 of the stationary roller is inserted at each endthroughholes in the two plates 7 and 8 so that it rotates freely inthese holes as bearings. In each of plates? and 8 is provided a slotshown at 12 in plate 7. and at 13 in plate 8. These slots are angularlydisplaced and extend from the stationary roller bearings upward and actasguides for the. ends of the shaft 14 of the movable roller .10.

The roller 10 is similar toroller 9 except that mop through the rollersand; has a somethrough plates 7 and 8 the shaft 14 has bearings in theends of a pair of long curved steel arms 15 and 16. The shaft 14 is heldfrom endwise movement by any suitable washers or nuts on the outside ofarms 15 and 16 On one end of shaft 14 is a rec-- tangular shaped piece17 which is of channel shape and into which the flat handle 18 it isperforated to assist in drawing the In addition to passing it fits. Thelength of the handle may-bead:

justed and set by using any one of-"a plu- 17 by means of a thumb screw.The steel arms 15 and 16 are long and curved around as shown in Figs. 2and 3. On the ends opposite the roller 10 the arms 15 and 16 arefastened to an iron frame 19 by means of a bar 20. There are a pluralityof holes in the frame 19 and also in each arm 15 and 16, so that thearms may be adjusted with relation to the frame 19. The frame 19 hasa'foot platform 21 by means of which it may be pushed down and is pivotedon the axle 22 of the tank. There are a pair of strong springs 19m and195 which normally tend to hold the frame-in its uppermost positionthereby maintaining the rollers separated normally.

Referring now to Fig. 3 the construction of the casting 7 can be clearlyseen. This castinghas the pivot hole of shaft 11 and the slot 12extending radially therefrom at an angle of about 45 degrees or morefrom perpendicular. In addition the casting has its mounting ribextending across horizontally with screw holes at each end shown indotted lines in Fig. 3. A strengthening rib 23 is also provided whichprojects on the inner side of the casting and acts as a guide for thelower edge of movable roller 10, also preventing the mop from becomingentangled in the bearings of said roller. The casting 8 is identical to7 except reversed and its slot 13 is directly opposite slot 12 as is itsstrengthening rib 24 shown only in Fig. 1. The wringer is shown inoperated position in Fig. 3 where the frame 19 has been pressed down andtherefore roller 10 has been drawn directly down the slots and intoengagement with stationary roll 11. Of course in its regular operation amop would be inserted between these rollers and they would not come asclose together. It will be seen from Figures 2 and 3 that when frame 19is pushed down a direct pressure is exerted on movable roller 10 in alme with the slots in plates 7 and 8 and that the roller 10 is moveddownwardv freely and against practically no resistance except from thesprings 19a and 196.

In Figs. 4, 5, and 6, I have shown a modified form of my invention inwhich the wringerfiproper consisting of the frame, wringer rolls, sideslotted castings etc, are identical with those of Figs. 1, 2 and 3;

The wringer here is however of thehand operated type instead of footoperated. The arms 25 and 26 in these figures are fastened to the shaftof the movable wringer roller 27 ina similar manner to that in which thearms=15 and 16 of Figs'l, 2 and 3 are'fastenedf -Thesearms 25 and 26 areshorter however and are fastened by a bar 28 to a frame 29 having ahandle30 thereon. The

frame 29 -is pivoted on adjustable bearings in brackets 31 and 32 whichare fastened as shown to the innersides of c'asangwe and 44. The bar 28may either be permanently riveted in place as shown, or be held by nutsand washers on the ends of the bar 28 outside of arms 25 and 26. Thestationary wringer roller 34 of these figures, instead of being rigidlymounted as in Fig. 1, has cushion bearings allowing a slight movement ofthe same in a direction in line with the slots 35 and 36. These bearingsare arranged so that when the movable roller is brought down intoengagement w1th it or onto a mop held against the roller 34,

the roller 34 gives slightly to allow a locking of the rolls together.This cushion bearing consists of a heavy spring holding a bearing 46 forthe shaft of the roller which shaft moves in a short slot in thecastings so that the complete roller may move downward a short distanceunder tension. One cushion bearing is shown in Fig. 6 and one cushion issupplied on each end of shaft of roller 34. Referring again to the frame29 it will be seen that the points where this frame is pivoted in thebrackets 31 and 32 are adjustable to provide for different size mops andso that the rollers may be brought closer together if desired. Thebracket 32 for instance is quite clearly shown in Fig. 6 and has a pairof lugs 33 and 34 through holes in which passes a stud 37 held in placeby a hexagonal nut above and a wing nut below the lug 34. At the centerof stud 37 is a bearing 38 for the rod 39 which acts as a pivot for bothends of frame 29. This rod 39 passes through bearing 38 also through asimilar bearing on bracket 31 on its opposite end. The adjustment of thehexagonal and wing nuts will raise the rod 39 up and down and suchmovement is permitted by the slot 40 through which rod 39 passes. "Theupper end of stud 37 works freely upand down in the hole in lug 33. Itwill thus be seen i that when bearing 38 and the other bear-' ing onbracket 31 are moved upward the frame 29 will, when pulled down, passthe center or have its toggle movement sooner and therefore. movableroller 27 will not be brought down as close to roller 34. In this mannerthe mop may be wrung dry or wet as desired.

To further explain the operationof this hand operated wringer it will beseen that the pivot consisting of rod 39 of frame 29 is substantially ina line with the pivot points of the roller 34 and the inclined slots 35and 36. Nowwhen the handle is seized an extent that it is nowpast centerand the tension of the springs in the cushion bearings of the stationaryroll 34 are tending to move the frame 29 downward instead of up and thuspressthe arms 25 and 26 tightly against the top edge of the tank tohold. the

wringer rolls locked together. When a heavier mop is used it isnecessary to move the pivot points or bearings of frame 29 upward sothat they will be further away from the line of the slots 35 and 36 andthe pivot or bearings of shaft of roll 34 so that the frame 29 will movepast center at an earlier point in its downward movement and thus willlook before the rolls are as close together as they are shown in Fig. 6.

It will thus be seen that I have provided a very simple and sturdy typeof wringer in which direct acting levers are provided to operate themovable roller and that said roller slides down a straight slot in apair of castings directly to the stationary roller. hat I consider to benew and desire to have protected by Letters Patent will be pointed outin the appended claims:

What is claimed is:

1. In a wringer mechanism, a pair of rigidly mounted parallel plates, astationary roller mounted between saidplates and having a bearing ineach plate in a corner thereof, an inclined slot in each plate extendingdiagonallyfrom a point near the bearing of the stationary roller in astraight line to the opposite upper corner of the plate, I

a movable roller having a shaft inserted at its ends through the slotsof both plates, an operator operated rigid steel frame connected to theends of the shaft of said movable roller for moving the same up and downin a straight line in said inclined slots into engagement with thestationary roller, and a spring means for returning the movable rollerto its upper position.

2. In a wringer mechanism, a pair of parallel plates, a pair of wringerrollers having bearings at each endther'eof in one of said plates, oneroller having its bearings in inclined slots ineach plate, a pivotedframe and arms for moving said last roller up and down in said slots, in,a' straight line and an adjustable connection between the rame and thearms for varying the movement of the movable roller'in proportion to themovement of the frame.

In witness whereof, I hereunto subscribe my7name this 18th day ofAugust, A. D. 192

SIMEON C. LAWLOR.

